Still wanting to give Laddie a little water work this morning, I used a technology strategy to find a suitable pond.
I needed gas, and I knew a station more or less on the way home to get a good price. secret getting the gas, I went to my Android phone's "map" application, entered "Burtonsville, MD" (our location at the time), adjusted the zoom, and looked for a blue patch representing water, with promising contours. I then placed a marker on the map and clicked a few controls to request navigation directions there. I was there in 5 minutes, a location I'd never have found just driving around.
Finding a legal parking spot in a mostly reserved-parking residential area, I leashed Laddie and we walked less than 100y to a community walking trail that skirted the pond I'd seen on the map.
I tossed an OB into the water at one end, then ran Laddie on a 180y shoreline water blind from the other. It wasn't an ideal setup for my purposes, since it had no points. But it was a good, long swim, with the advantages of conditioning and overtraining, that is, making more likely shorter event swims seem less imposing. And at least it did have one "factor", the diversion of a flock of ducks, including babies, swimming only a short distance from Laddie's line to the blind.
Now I'll try to remember to use this same on-phone mapping strategy to find other ponds for us to work on, closer to home than the training properties we usually go to.